氯盐环境中硫铝酸盐水泥的耐侵蚀行为  

Resistance to Chloride Attack of Sulphoaluminate Cement

作　　者：郑连丛[1] 叶正茂[1] 朱元娜[1] 程新[1] 

机构地区：[1]济南大学材料科学与工程学院,山东济南250022

出　　处：《济南大学学报（自然科学版）》2011年第2期111-114,共4页Journal of University of Jinan(Science and Technology)

基　　金：国家重点基础研究发展计划(2010CB635117);山东省自然科学基金(Q2008F04);山东省高等学校科技计划(J08LA51)

摘　　要：将硫铝酸盐水泥试块放入水和3种氯盐浸蚀液,连续28 d更换侵蚀液后,测试各龄期试块强度和浸蚀液中离子浓度,并作体视显微镜(SM)和X射线衍射(XRD)分析。结果表明:28 d的MgCl2浸蚀溶液中试块强度最低,p=58.2 MPa,略低于水中试块强度,c(Cl-)由0.63 mol.L-1降至0.28 mol.L-1,c(Mg2+)由0.32 mol.L-1降至0.16 mol.L-1,试块表面析出大量Mg(OH)2细小盐晶,MgCl2对试块有交叉侵蚀作用。The samples were put into water and three kinds of chloride salt solutions.After 28d continuous erosion in experimental solutions changed each day,the samples were tested for their strength and analyzed using SM and XRD.It is shown that the samples eroded in MgCl2 solution have the lowest strength of 58.2MPa,and the ion concentration Cl-decreases from 0.63mol·L-1 to 0.28mol·L-1,c（Mg2＋） from 0.32mol·L-1 to 0.16mol·L-1,and that a amount of fine crystals are separated out on the surfaces of the samples.MgCl2 have cross-erosion on the samples.

关 键 词：硫铝酸盐水泥 侵蚀液 强度 离子浓度 

分 类 号：TQ172.77[化学工程—水泥工业]